how to adjust adhoc query when the database table changed.

DearFreinds,

I have created an adhoc Query , however after few days there was a requirement to remove some fields and change the length of some fields . Now the Adhoc query showing as to adjust , however when iam trying to adjust nothing is happening. Could any one let me know how to adjust with the table strucutre in the adhoc query.

Regards

madhu.